Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 484 [Rate centres in NPA 484] [Dial plan for NPA 484]

NXX: 535

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
484-535 A Philadelphia Suburban Zone 31 PA NATNPAAGGT0  7615 RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 228      
484-535 0 Philadelphia Suburban Zone 31 PA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2008-10-21   
484-535 1 Philadelphia Suburban Zone 31 PA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2008-10-21   
484-535 2 Philadelphia Suburban Zone 31 PA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2009-08-27   
484-535 3 Philadelphia Suburban Zone 31 PA   002F BANDWIDTH.COM CLEC, LLC - PA 228   2012-07-16   
484-535 4 Philadelphia Suburban Zone 31 PA   002F BANDWIDTH.COM CLEC, LLC - PA 228   2008-09-14   
484-535 5 Philadelphia Suburban Zone 31 PA   547E ONVOY, LLC - PA 228   2016-03-21   
484-535 6 Philadelphia Suburban Zone 31 PA   7615 RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 228      
484-535 7 Philadelphia Suburban Zone 31 PA   547E ONVOY, LLC - PA 228   2016-03-21   
484-535 8 Philadelphia Suburban Zone 31 PA   7615 RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 228      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.